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<title>Avoid foo:bar</title>
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<h1><a href="../../"><span id="feed"><span id="f">F</span><span id="e1">E</span><span id="e2">E</span></span><span id="d">D</span> Validator</a></h1>
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<h2>Message</h2>
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<p>Avoid <code>foo:bar</code></p>
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<h2>Explanation</h2>

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<p>Avoid using elements in namespaces when there are already core elements
that do the same thing.</p>
<p>The item contains an element that duplicates the semantics of the
description element.  Be advised that clients will behave unpredictably in the
presence of such an element: some will prefer it over the description element,
others will ignore it, and the behavior may depend on the order in which such
elements appear in the item.</p>
<p>Here are a few links to prior discussions on the topic:</p>
<ul>
<li>Dave Winer
<ul>
<li><a href="http://backend.userland.com/davesRss2PoliticalFaq#questionWhatDoesFunkyMeanInTheContextOfRss20">RSS 2.0 Political FAQ</a></li>
<li><a href="http://scripting.wordpress.com/2006/03/08/a-busy-developers-guide-to-rss-20/">A Busy Developer&#8217;s Guide to RSS 2.0</a></li>
</ul>
</li>
<li><a href="http://www.cadenhead.org/workbench/news/1598/improving-movable-types-rss-20-feed">Rogers Cadenhead</a></li>
<li><a href="http://groups.yahoo.com/group/rss-public/message/310">James Holderness</a></li>
<li><a href="http://www.2020hindsight.org/2006/03/09/learning-feeds/">Susan A. Kitchens</a></li>
<li><a href="http://blogs.opml.org/amyloo/2006/04/15#justRealizedSomethingAboutMyVerticalTopicFeedCouldUseSomeHelp">Amy Bellinger</a></li>
</ul>
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<h2>Solution</h2>
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<ul>
<li>Select whether you want your feed to contains summaries (sometimes called excerpts) or full content (a.k.a. body).</li>
<li>Encode your selection as HTML.</li>
<li>Place the result in the item <code>description</code> element.</li>
<li>Remove other elements that provide the same function.</li>
</ul>
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<h2>Not clear?  Disagree?</h2>
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<p>You might be able to find help in one of <a href="../howto/resources.html">these fine resources</a>.</p>
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